完形填空Bigschoolbagshavebeenabigprob

完形填空 Big schoolbags have been a big problem for students for a long time. Maybe your schoolbag is too1to carry, and it troubles you a lot2you want to find out a book to read. Now e-textbooks will3you. It is said that many Chinese middle schools are going to use e-textbooks. An e-textbook, in fact, is a small4for students. It is much5than a usual schoolbag and easy to carry. Though it is as small as a book, it can6everything for study. The students can read the text page by page on the7，take notes8the pointer (屏写笔)，or even “hand in” their 9to their teachers by sending e-mails. All they have to do is to press a button (按开关). Some people say e-textbooks are good, but some say they may be10for the students’ eyes. What do you think of it?1.A.expensiveB.heavyC.usefulD.comfortable2.A.tillB.afterC.beforeD.when3.A.troubleB.keepC.helpD.understand4.A.TVB.radioC.penD.computer5.A.heavierB.lighterC.cheaperD.brighter6.A.holdB.buildC.findD.practice7.A.blackboardB.keyboardC.screenD.menu8.A.useB.inC.byD.with9.A.computerB.homeworkC.e-textbooksD.plans10.A.badB.dangerousC.goodD.Helpful

BDCDB ACDBA解析1.根据实际情况，可知

就是这个解释